Thank you Jeff! WHP
From: Jeff Newmiller <jdnew...@dcn.davis.ca.us> Sent: Wednesday, May 22, 2019 10:06 AM To: r-help@r-project.org; Rui Barradas <ruipbarra...@sapo.pt>; Bill Poling <bill.pol...@zelis.com>; r-help (r-help@r-project.org) <r-help@r-project.org> Subject: Re: [R] Help with R coding Generally more efficient to filter before grouping. Note that summarize clears out whatever isn't mentioned in it, so the subsetting currently being done in the mean call could also be done in the pre-filter step and you can avoid filtering other columns and then discarding them by limiting the operations to only those columns that will be referenced: tmp1 <- tmp %>% select( HCPCSCode, Avg_AllowByLimit, AllowByLimitFlag ) filter( AllowByLimitFlag & Avg_AllowByLimit != 0 ) %>% group_by( HCPCSCode ) %>% summarise( Avg_AllowByLimit = mean( Avg_AllowByLimit ) ) On May 22, 2019 6:45:39 AM PDT, Rui Barradas <mailto:ruipbarra...@sapo.pt> wrote: >Hello, > >Maybe filter the AllowByLimitFlag values first (not tested)? > > >tmp1 <- tmp %>% > group_by(HCPCSCode) %>% > filter(AllowByLimitFlag) %>% > summarise(Avg_AllowByLimit = >mean(Avg_AllowByLimit[which(Avg_AllowByLimit!=0)])) > > >Hope this helps, > >Rui Barradas > > >Às 13:35 de 22/05/19, Bill Poling escreveu: >> tmp1 <- tmp %>% >> group_by(HCPCSCode) %>% >> summarise(Avg_AllowByLimit = >mean(Avg_AllowByLimit[which(Avg_AllowByLimit!=0)])) >> >> # But I need Something like that + This >> >> WHERE AllowByLimitFlag == TRUE > >______________________________________________ >mailto:R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see >https://stat.ethz.ch/mailman/listinfo/r-help >PLEASE do read the posting guide >http://www.R-project.org/posting-guide.html >and provide commented, minimal, self-contained, reproducible code. -- Sent from my phone. Please excuse my brevity. Confidentiality Notice This message is sent from Zelis. This transmission may contain information which is privileged and confidential and is intended for the personal and confidential use of the named recipient only. Such information may be protected by applicable State and Federal laws from this disclosure or unauthorized use. If the reader of this message is not the intended recipient, or the employee or agent responsible for delivering the message to the intended recipient, you are hereby notified that any disclosure, review, discussion, copying, or taking any action in reliance on the contents of this transmission is strictly prohibited. If you have received this transmission in error, please contact the sender immediately. Zelis, 2018. ______________________________________________ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
